Japanese Flowering Ash,
Chinese Flowering Ash
Native to (or naturalized in) Oregon:
- Deciduous tree, 20-30 ft (6-9 m) high, young branches thin with erect pubescence. Leaves opposite, pinnate compound, to 20 cm, 5-7 leaflets, each leaflet 3.5 cm wide, abruptly acuminate, margin serrate or entire, glabrous, midrib downy. Flowers white in "string-like" clusters to 15 cm, blooms in late spring/early summer. Fruit wings oblanceolate, 2.5-3 cm long.
- Hardy to USDA Zone 6 Native to Japan and central China.
- Fraxinus sieboldiana, along with F. ornus (Flowering Ash), F. bungeana, F. floribunda, F. griffithii, and F. paxima, have flowers with a corolla (i.e., the collection of petals). The flowers of most Fraxinus do not have petals.
- sieboldiana: after Philipp Franz von Siebold (1796-1866), German doctor who introduced and named many plants from Japan.